Apollo 15

Crew:

David R. Scott

James B. Irwin

Alfred M. Worden

This was the first of the longer expeditions to the moon, where we
actually began to explore the terrain in some detail. The flight of
Apollo 15 featured the first use of the Lunar Rover, which permitted
Scott and Irwin to leave the Lunar Module "Falcon" behind and drive
around over more than 27 kilometers of lunar ground.

The astronauts found and brought back the "Genesis Rock,", a chunk
of truly ancient lunar crust that has been extensively studied for clues
about the origins of the moon and the Earth.

During the return flight aboard the Command Module "Endeavour," Alfred
Worden became the first man to perform a space walk outside of earth's orbit as
he went outside to retrieve some film from the side of the space craft.